Sash-fastener.



No. 6s|,|3l. Patenteunov. 6, |900. J.. M. Polman.

SASH FAISTENER.. l'

(Application mea .my 3o, 1900.)

(No Model.)

me nmms persas ce.. Puouuruo.. wAsmNoToN, u. c.

UNITED STATES PATENT OFFICE.

JOHN M. PORTER, OF BOSTON, MASSACHUSETTS.

vsAsH-FAs-TENER.

SPECIFICATION forming part of Letters Patent No. 661,131, dated November 6, 1900.

Application filed July 30, 1900. Serial No. 25,248. `No model.,y

To all whom, t may concern/f Be it known that I, JOHN M. PORTER, of Boston, county of Suffolk, and State of Massachusetts, have invented an Improvement in Sash-Fasteners, of which the following description, in connection With the accompanying drawings, is a specification, like letters on the drawings representing like parts.

The `present invention relates to a sashfastener and is embodied in a device which is arranged to securely fasten the meetingrails together when the window is closed and also to draw them toward one another and make a tight joint in cases where the sashes are loose in the window-frame. 'The fastening device is also arranged to constitute means for fastening the sashes when the win- V with a locking-lever pivoted in aframe secured to said meeting-rail and arranged to have two fastening positionsone for the window fully closed and one for the Window partly closed-andan intermediate position in which the sashes are not connected together. The said lever is provided at its lower `end with a hook-shaped projection which is adapted to enter a recess in the fastening-plate upon the upper sash, the said recess being undercut and the hook portion so related to the pivotal support of the lever that as the said lever is turned upon its pivotal support the said hook will engage the inner wall of said undercut recess and tend to draw the upper and lower meeting-rails together as well as to fasten the same. The

opposite end of the lever is provided with an y engaging shoulder adapted when the said lever is turned in the opposite direction upon its pivot to engagea similar shoulder in the fastening-plate and also prevent an opening movement of either sash. The plate' is preferably provided with several of such shoulders, between which there are inclined faces, so that the sash can be fastened in one or more positions, the fastening, while preventing any movementof the sashes, not preventv ing the window from being closed, since the lever, which is held on a spring in engagement with the fasteuingplate, can travel along inclined surfaces from one shoulder to the next in the closing movement of the sash. By so positioning one of the said shoulders that the lever will engage the same when the window is closed the said device constitutes a supplemental locking device, so that if the window is closed after being fastened in av partly-open condition and by carelessness the Vlever is not moved to lock the windowl in the ordinary way the window will still be prevented from being opened, the lever in either of its extreme positions constituting an effectual locking device. The lever is acted upon by a spring, which tends to hold lthe same in its supplemental locking position, and in order to free the sashes a catch is provided to hold the level' in an intermediate position, such that neither end thereof will engage the fastening-plate. i

Figure 1 is a vertical section of the upper stile, the fastening-plate, and the lever-supporting frame on the lower stile, the lockinglever being mainly shown in elevation. Fig. 2 is a sectional detail of the upper part of the locking-lever. Fig. 3 is a front elevation, partly in section, of the locking device; and Fig. 4 is a detail view showing the lockinglever in its supplemental locking position.

The upper stile A is provided with a lock-1 ing-piate ci, which may be set into or otherwise secured to the front of the said stile, the said locking-plate having at its lower end an engaging surface a2, beneath and behind y which is a recess a3 to receive the hook-shaped end b2 of the locking-lever b. The said locking-lever is pivotally connected with a supporting-frame c, secured, as by screws c2, Fig. 3, to the top of the meeting-rail B ofv the lower sash, the said frame having two vertical members c3, between which the lever issupported, the pivot c4 extending across from one of said members to the other through a suitable opening near the lower end of the level'. As shown ill Fig. l, the lever I) is in a neutral position, such tllat no part of said levell will engage the locking-plate d, the sashes being 'free to lnove one past the other, so that the window can be opened. The pivotal support c4is so positioned relative to the level' that when said leveris moved frolll the position sllowll in full lilies, Fig. l, to the position shown ill dotted lilies, Fig. l, thehook b2 will enter the recess a3 and will engage the surface o2, the final movement of said lever tendingl to crowd ille said surface toward the pivotal support of the lever, tllus drawing the n'leetingl'ails of the sashes together. There is, lnoreover, a considerable upward movement ol' the said hook as the level' is swung on its pivot, so that in cases where the meeting-rails are not exactly on the same level there will still be rooln for the ho'ok to entel' t-lle recess, while the movement of the lever will tend to crowd the said meetingrails illto their proper position l'elative to each other. To fasten the lever in its locking position, the said lever is-provided with a latch b3, pivoted to the end thereof and provided with lat ching project-ions b4one on each side-adapt ed to engage ratchetteeth c5, formed at the rear of the frame c, so that as the said lever is pushed into locking position the said latch, which is provided with a spl'ing b5, will ride over the said teeth and be automatically fastened thereby. As indicated, there are several of such teeth,so that if the meeting-rails will not come together properly and the lever cannot be fully pushed home it will nevertheless be fastened ill such a position as to securely lock the window.

In ol'del' tllat the window may be left partly open for purposes of ventilation and still prevented from any further opening movenlellt from the outside, the lever l) is also arranged to constitute a supplemental locking device for this purpose, the opposite end of said lever from that which is provided with the hook b2 having a shoulder 196, wllich is adapted to engage a shoulder d4, formed in the plate d, there beillg preferablya number of said shoulders arranged in the form of ratchet-teeth, as indicated. lVhen, thel'efore, the level' is swung on its pivot in the direction opposite to that which has been described, the shoulder b will lie in the path of the shouldel's d, the face of the lever lying against one of the inclined surfaces a5, which extend from one shoulder d4 to the next, as Shown in Fig. 4. The lever is provided with a spring 67, the specic construction of which will be hereinafter described, the said spring being so arranged as to throw the lever toward the plate a and cause the shoulder be to lie in the path of the shoulders d4. The window, therefore, can be opened to a certain extent and the locking-lever thrown into engagement with the plate d, it being obvious tllat while the window can be closed without manipulating the locking device it is inlpossible to open it beyond a certain extent because the shoulder ly will come into engage lnent with one of the shoulders d4.

To free the sashes, or, in other words, to hold the lever in an intermediate unfasteningposi tion, the upper portion of the frame c is provided with projections c6 in the path of the latch projections h4, the said shoulders beingl so positioned, asindicated ill Fig. 1, that when the latch projectionsbiarein engagement wi l ll the outer su rl'ace thereof the lever will be held in an intermediate position, the bodyof the lever being parallel Witll the plate d alld no part of the said lever projecting beyond any of the engaging portions of said plate. By pressing upon the front of the latch member b3 the pro'- jections b4 will be lifted out of engagement with the shoulders c, and the lever will then spring into its supplemental locking position, and if the witldow is shut it will be locked automaticallyeven if the usual manipulation of the locking device is forgotten.

The upper portion of the lever l), which is provided with a recess to contain the latch member b3, is lllade, as showll, in the form of a flat tongue one surface of which when the lever is in its supplemental locking position will lie in engagement with the plate d, so that it is practically impossible for any one from the outside when the window is partially open to insert a stick or wire behind the said tongue for the purpose of pulling the lever out of engagement with the plate.

The spring which acts upon the locking-level' is so arranged as to act mainly when the said lever is in its supplemental locking position, there being substantially no tellsion upon the spring when the lever is in its main locking position, in which position it is positively fastened. To this end a pair of steel springs are employed, the bodies of said springs being fastened to the lower part of the frame @and the ends thereof bearing against cam-shaped projections bs, formed on opposite sides of the lever, the said projections bcing so shaped that as the lever is moved toward its lnain locking position the points wllerethe springs heal' on said surfaces will be neal'ly in line with the pivotal support of the level', so that the spring has substantially no tendency to turn ol' swing the level'. Nhem therefore, the lever is disconnected from the latching-should ers c5, it will not tend to fly upward into its other position, the spring not beginning to act to any extent until the level' approaches itsvertical position, where the spring is needed to hold it in its supplemental locking position.

l. A sash-fastening, comprising a fastening-plate adapted to be secured to the stile of the upper sash and provided with a recess or opening, and one or inol'e shoulders above said recess; and a single fastening member having a pivotal support upon the meeting-rail of the lower sash, one end of said fastening member being adapted to engage with said recess and the other end of said fastening member vbeing adapted to engage with said shoulder to prevent a further movement of either sash in the direction to open the window, substantially as described.

2. In a sash-fastening, a fastening-plaie adapted to be secured to thestile of the upper sash and provided at its lower end with a recess having an engaging portion at the front thereof, and above said recess with one or more shoulders; a locking-lever pivotally supported in a frame secured to the meetingrail of the lower sash; a hook portionat the lower end of said lever adapted to enter said recess and engage the engaging surface at the front of the same when said lever has been moved in one direction upon its pivot; means for fastening saidlever to the frame at the end of such movement; `and an engaging shoulder at the opposite end of said lever adapted when the lever is moved in the opposite direction to engage one of the shoulders above the recess, substantially as described. f

3. A sash-fastening comprising a fasteningplate adapted to be secured to the stile of the upper sash and provided with an engaging portion and one or more shoulders above said portion; a single fastening member havinga pivotal support upon the meeting-rail of the lower sash, one end of said fastening member being adapted to engage with said engaging portion, and the other end of said fastening member being adapted to engage the said shoulder; and a spring having a bearing on said member and so shaped as to bear againstv the sanne substantially iu line with its pivotal support when said member engages said engaging portion and substantially ont of line with said pivotal support when said member engages said shoulder, substantially as described.`

4. In a sash-fastening, a plate secured to one sash and having a' series of shoulders with inclined surfaces extending from one shoulder to the next; a lever connected with the other sash and provided with a shoulder to engage said plate; a spring for forcing said lever into engagement with said plate; and

a fastening-catch to hold the said lever out of engagement with said plate, as set forth.

5. In a sash-fastening, a plate secured to the upper sash and having a series of shoulders withV inclined surfaces extending from one shoulder to the next and a recess below said shoulders; a lever connected with the other sash and provided with ashoulder to engage the shoulders on, the plate; a spring for forcing said lever into engagement with said plate; a fastening-catch pivotally connected with said lever; a shoulder cooperating with said catch to hold said lever ont of engagement with said plate; a locking projection at the opposite end of said lever to engage the/ 

